This pioneering rack transfer switch offers inlet surge protection, field replaceable output short circuit protection, redundant internal power supplies and dual controllers. Raritan’s hybrid rack transfer switches use electromechanical relays and silicon controlled rectifiers (SCRs) to transfer a load between two sources. The result is performance and reliability that exceeds that of standard automatic transfer switches (ATS) and at a lower price point than static transfer switches (STS).


  • Eliminates electrical arcing that leads to transfer relay failure
  • Fast power transfer times at 4-8ms
  • Over-sized relays (rated 48A) and SCRs (rated 70A)
  • Threshold alerting and status updates via GSM text, email and syslog, SNMP V1/V2/V3
  • Inlet surge protection and field replaceable, fast-blow fuses for short circuit protection
  • Fan-free design for reduced noise and power consumption
  • Real-time remote power quality monitoring
  • Outlet monitoring and outlet switching models available


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